Hi! First, BEAUTIFUL piece of art, I love it! I have a round window above my two story entry which lets light in above the front door at the 2nd story level. I would absolutely love to have a stained glass window their instead. Is this particular piece something which could withstand the elements , or would you affix it with a piece of transparent single-paned glass on the outside facing the exterior wall? Thank you! (Also, if this is something other home-owners do with these round windows, I would love to know the method of installation that works best.) Very sincerely, Jaime V.